One user having issues, everone else fine
I'm in a situation now where one of our users is having issues.
We had our SAP rep (5 years ago, during deployment) write an add-on that automatically calculates quantity discounts based on some user defined fields.
This one user, when they start adding items to a sales order, gets an error message "-3026 Item Form is not editable" and then the addon stops working.
All other users are fine. It doesn't matter which computer I use to login. If I log as this particular user the addon breaks. I can login to any other user on any machine and it works fine.
Does anyone have any idea why a single user would be having these troubles?